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Hello PLEASE help meet A scientist heats an unknown substance in a closed system. The graph shows the chnage in temperature over time. During which period is the substance changing state?​
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Hello PLEASE help meet

A scientist heats an unknown substance in a closed system. The graph shows the chnage in temperature over time.


During which period is the substance changing state?​

Hello PLEASE help meet A scientist heats an unknown substance in a closed system. The-example-1
User Jay Bosamiya
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Answer:A. Losing or Gaining Energy When most substances lose or gain energy, one of two things happens to the substance: its temperature changes or its state changes. ... when the temperature of a substance changes,the speed of the particles also changes.

Step-by-step explanation:

User Jens Hoffmann
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